Structures and Functions of Membrane Antenna Proteins with High Resolution Solution and Solid State NMR

用高分辨率溶液和固态核磁共振研究膜天线蛋白的结构和功能

基本信息

  • 批准号:
    15350096
  • 负责人:
  • 金额:
    $ 6.85万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2004
  • 项目状态:
    已结题

项目摘要

Main object of the research is to establish the method to elucidate structures and functions of membrane proteins and pigment complexes in terms of high resolution solution nuclear magnetic resonance in conjunction with solid state NMR. For the target of the studies we have selected one of the bacterial membrane antenna, and chlorosome anntena. The membrane antenna called LH1 (light harvesting complex 1) or B870 has subunits (B820) composed of two (α and β) polypeptides and two bacteriochlorophyll molecultes in the active site as the prothetic groups. We have established the methods to elucidate the structures around the prothetic group with use of selectively isotope enriched samples. Thus, we reconstituted the subunit B820 of the LH1 with the isotope enrichied BCh1 a and the normal subumits, or the isotope enriched a and the natural β subunit and the natural BChl a and could resolve the structures with use these samples by the solution NMR. In this case the ^<13>C enriched pigment bacteriochlorophylls and the ^2H enriched proteins could focus the signal of the bacteriochlorophylls and the environment. Futhermore we have make extensive use of multidimensional NMR with these samples. These studies have disclosed the method to elucidate membrane proteins in terms of NMR. The whole unit of LH1, i.e., B870 is too large to be investigated by the solution NMR, we have tried to observe the NMR in full use of solid high resolution NMR. The obtained data have been analyzed in terms of the knowledge of the solution NMR. The assigned signal tells us the B870 would be composed of the subunits with similar structures in the solution states. The multi-dimensional solution NMR and the isotope enrichment have afforded the method to clarify the structure of the component a and R polypeptide in the chloroform/methanol solution
本研究的主要目的是建立高分辨溶液核磁共振与固体核磁共振相结合的方法来阐明膜蛋白和色素复合物的结构和功能。对于研究的目标,我们选择了细菌的膜天线,和叶绿体anntena。膜天线LH 1(light harvesting complex 1)或B870含有由两个多肽(α和β)和两个细菌叶绿素分子组成的亚基(B820)作为辅基。我们已经建立了使用选择性同位素富集样品来阐明假体组周围结构的方法。因此,我们用同位素富集的BCh 1a和正常亚基,或同位素富集的α和天然β亚基和天然BCh 1a重构LH 1的亚基B820,并利用这些样品通过溶液NMR解析结构。在这种情况下,富含^<13>C的色素细菌叶绿素和富含^2H的蛋白质可以聚焦细菌叶绿素和环境的信号。因此,我们对这些样品广泛使用多维NMR。这些研究揭示了利用核磁共振技术研究膜蛋白的方法。LH 1的整个单元,即,B870太大,无法通过溶液核磁共振进行研究,我们尝试充分利用固体高分辨率核磁共振来观察核磁共振。所获得的数据进行了分析方面的知识的解决方案NMR。指定的信号告诉我们,B870将由在溶液状态下具有相似结构的亚基组成。多维溶液核磁共振和同位素富集技术为确定组分A和R多肽在氯仿/甲醇溶液中的结构提供了方法

项目成果

期刊论文数量(36)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Z.-Y.Wang, et al.: "Puritication and characterization of the polypeptides of core light-harvesting complexes from purple sulfur bacteria"Photosynthesis Research. 78. 133-141 (2003)
Z.-Y.Wang 等人:“紫硫细菌核心光捕获复合物的多肽的纯化和表征”光合作用研究。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
NMR Relaxation Study of the Bacteriochlorophyll c in Solutions
  • DOI:
    10.1021/jp040422l
  • 发表时间:
    2004-08
  • 期刊:
  • 影响因子:
    3.3
  • 作者:
    Zheng‐Yu Wang;Tomoyuki Kadota;Masayuki Kobayashi;A. Kasuya;T. Nozawa
  • 通讯作者:
    Zheng‐Yu Wang;Tomoyuki Kadota;Masayuki Kobayashi;A. Kasuya;T. Nozawa
Purification and Characterization of the Polypeptides of Core Light-Harvesting Complexes from Purple Sulfur Bacteria
  • DOI:
    10.1023/b:pres.0000004328.11219.79
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Zheng‐Yu Wang;M. Shimonaga;Hiroaki Suzuki;Masayuki Kobayashi;T. Nozawa
  • 通讯作者:
    Zheng‐Yu Wang;M. Shimonaga;Hiroaki Suzuki;Masayuki Kobayashi;T. Nozawa
NMR relaxation study of bacteriochlorophyll c in solutions
溶液中细菌叶绿素 c 的 NMR 弛豫研究
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Dang Duc Vuong et al.;Tomohisa Ogawa;T.Ohkuma;Zheng-Yu Wang et al.;S.Yamada et al.;U.-Sung Choi et al.;Zheng-Yu Wang et al.;T.Ohkuma;Katsuyoshi Hoshino;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.
  • 通讯作者:
    Zheng-Yu Wang et al.
Determination of the B820 Subunit Size of a Bacterial Core Light-Harvesting Complex by Small-Angle Neutron Scattering
通过小角中子散射测定细菌核心光捕获复合物的 B820 亚基大小
  • DOI:
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Dang Duc Vuong et al.;Tomohisa Ogawa;T.Ohkuma;Zheng-Yu Wang et al.;S.Yamada et al.;U.-Sung Choi et al.;Zheng-Yu Wang et al.;T.Ohkuma;Katsuyoshi Hoshino;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.;M.Umetsu et al.;Zheng-Yu Wang et al.;Zheng-Yu Wang et al.;Mitsuo Umetsu et al.;Zheng-Yu Wang et al.;Zheng-Yu Wang et al.
  • 通讯作者:
    Zheng-Yu Wang et al.
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NOZAWA Tsunenori其他文献

NOZAWA Tsunenori的其他文献

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{{ truncateString('NOZAWA Tsunenori', 18)}}的其他基金

Structural Analysis of Intact Biomolecules by Solid State High Resolution Nuclear Magnetic Resonance with Homogenously Isotope Labeled Samples
通过固态高分辨率核磁共振对同位素标记样品的完整生物分子进行结构分析
  • 批准号:
    12450341
  • 财政年份:
    2000
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
MECHANISM AND STRUCTURE OF PHOTOSYNTHETIC REACTION AND APPRATUS FOR APPLICATION OF ITS MECHANISM TO ENERGY PRODUCING BIOMEMBRANE
光合反应的机理和结构及其应用于产能生物膜的装置
  • 批准号:
    07455437
  • 财政年份:
    1995
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
DEVELOPMENT OF 2D LINEAR AND CIRCULAR DICHROMETER AND ITS APPLLICATION FOR BIOLOGICAL MOLECULAR SYSTEMS
二维线性和圆形二色计的研制及其在生物分子系统中的应用
  • 批准号:
    06555257
  • 财政年份:
    1994
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
Structural Elucidation of Photosynthetic antenna and Its Application for Light Harvesting System.
光合天线的结构解析及其在光捕获系统中的应用。
  • 批准号:
    03650638
  • 财政年份:
    1991
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Development of a New Thermostable Photosynthetic Bactria by Ricombinant DNA
利用重组DNA开发新型耐热光合细菌
  • 批准号:
    63044016
  • 财政年份:
    1988
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for Overseas Scientific Survey.

相似海外基金

Spin Transition and Crystal Defects in Coordination Compounds: a Solid-State High-Resolution NMR Study
配位化合物中的自旋跃迁和晶体缺陷:固态高分辨率核磁共振研究
  • 批准号:
    24550003
  • 财政年份:
    2012
  • 资助金额:
    $ 6.85万
  • 项目类别:
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NMR Imaging and Solid State High Resolution NMR Studies of Materials ; Properties and Internal Structural Changes in Materials.
材料的核磁共振成像和固态高分辨率核磁共振研究;
  • 批准号:
    02453032
  • 财政年份:
    1990
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
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